Happy Valley
Oregon — Wasco County — Quartz Creek
Location
| State | Oregon |
| County | Wasco |
| River | Quartz Creek |
| Coordinates | 44.96390, -121.32350 |
Physical Characteristics
| NID Height | 70 ft |
| Dam Height | 46 ft |
| Dam Length | 393 ft |
| NID Storage | 490 acre-ft |
| Max Storage | 490 acre-ft |
| Surface Area | 20 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | Yes |
| Last Inspection | June 14, 2022 |
| Inspection Frequency | 5 |
Dam Information
| Year Completed | 1938 |
| Primary Purpose | Irrigation |
| Dam Type | Earth |
| Owner Type | Federal |
| Owner | BIA |
| Other Name | Simnasho Reservoir |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.